Treadmill



FIG. 1 is a perspective view of a treadmill showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof, opposite that of FIG. 2;

FIG. 4 is a side view thereof;

FIG. 5 is a side view thereof, from a side opposite that of FIG. 4;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof, opposite that of FIG. 6. 

CLAIM The ornamental design for a treadmill, as shown and described. 